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Finding the Fourth Proportional to 74,531.60, 111,802.80 and 44,885.60

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Solution

The fourth proportional to 74,531.60, 111,802.80 and 44,885.60 is: 67,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,531.60 : 111,802.80 = 44,885.60 : x
  2. Step 2: Convert to fraction form
    74,531.60/111,802.80 = 44,885.60/x
  3. Step 3: Cross multiply
    74,531.60x = 111,802.80 × 44,885.60
  4. Step 4: Simplify right side
    74,531.60x = 5,018,335,759.68
  5. Step 5: Solve for x
    x = 5,018,335,759.68/74,531.60
  6. Step 6: Final answer
    x = 67,331.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.